Learn about the correct usage of the @testSetup annotation in Apex test classes, its incompatibility with @isTest(SeeAllData=True), and how it helps create reusable test data for improved performance and reduced code duplication.
Table of Contents
Question
Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)
A. The @testSetup annotation is not supported when the @isTest(SeeAllData=True) annotation is used.
B. Records created in the test setup method cannot be updated in individual test methods.
C. A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits.
D. In a test setup method, test data is inserted once and made available for all test methods in the test class.
Answer
A. The @testSetup annotation is not supported when the @isTest(SeeAllData=True) annotation is used.
D. In a test setup method, test data is inserted once and made available for all test methods in the test class.
Explanation
The correct statements about using the @testSetup annotation in an Apex test class are options A and D.
A. The @testSetup annotation is not supported when the @isTest(SeeAllData=True) annotation is used. This is true because the @testSetup method is designed to create test data in isolation, while @isTest(SeeAllData=True) allows access to org data, which conflicts with the purpose of @testSetup.
D. In a test setup method, test data is inserted once and made available for all test methods in the test class. The @testSetup method runs once before all test methods in the class, and the data created is accessible to all test methods, reducing code duplication and improving performance.
Option B is incorrect because records created in the @testSetup method can be updated in individual test methods.
Option C is incorrect because the @testSetup method runs only once before all test methods, not once for each test method, and does not count towards system limits for each test method.
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